blob: c596b959a4083d7bac77f5bcaf80f590172f2e19 (
plain) (
tree)
|
|
/**
* @file
*
* @brief Thread Queue Handler Process Timeout Handler
* @ingroup ScoreThreadQ
*/
/*
* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/score/chain.h>
#include <rtems/score/isr.h>
#include <rtems/score/object.h>
#include <rtems/score/states.h>
#include <rtems/score/thread.h>
#include <rtems/score/threadq.h>
#include <rtems/score/tqdata.h>
void _Thread_queue_Process_timeout(
Thread_Control *the_thread
)
{
Thread_queue_Control *the_thread_queue = the_thread->Wait.queue;
/*
* If the_thread_queue is not synchronized, then it is either
* "nothing happened", "timeout", or "satisfied". If the_thread
* is the executing thread, then it is in the process of blocking
* and it is the thread which is responsible for the synchronization
* process.
*
* If it is not satisfied, then it is "nothing happened" and
* this is the "timeout" transition. After a request is satisfied,
* a timeout is not allowed to occur.
*/
if ( the_thread_queue->sync_state != THREAD_BLOCKING_OPERATION_SYNCHRONIZED &&
_Thread_Is_executing( the_thread ) ) {
if ( the_thread_queue->sync_state != THREAD_BLOCKING_OPERATION_SATISFIED ) {
the_thread->Wait.return_code = the_thread->Wait.queue->timeout_status;
the_thread_queue->sync_state = THREAD_BLOCKING_OPERATION_TIMEOUT;
}
} else {
the_thread->Wait.return_code = the_thread->Wait.queue->timeout_status;
_Thread_queue_Extract( the_thread->Wait.queue, the_thread );
}
}
|